* {
  margin: 0;
  padding: 0;
  list-style: none;
}

.app {
  width: 800px;
  margin: auto;

  .header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
    input {
      width: 330px;
      height: 40px;
    }

    button {
      height: 40px;
      width: 100px;
    }
  }

  .content {
    .list-item {
      h2 {
        display: flex;
        justify-content: space-between;
      }

      ul li {
        display: flex;
        justify-content: space-between;
        border: 1px solid #ccc;
        height: 40px;
        align-items: center;
        padding: 0 12px;
        margin: 10px;
      }
    }
  }
}